Unit 2- Solutions
Danette Vance
Created on September 4, 2024
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Transcript
Solution
Temperature
Dilution
Rate of Dissolution
Agitation
Surface Area
Concentration
7.6E- investigate and model how temperature, surface area, and agitation affect the rate of dissolution of solid solutes in aqueous solutions.
7.6C- distinguish between physical and chemical changes in matter
7.6D- describe aqueous solutions in terms of solute and solvent, concentration, and dilution
Unit 2
Solute
Aqueous Soltion
Expected Change
Universal Solvent
Chemical Change
Solvent
Heterogenous mixture
Physical Change
Homogenous mixture
Physical Change
A change altering the form or appearance of matter, but not turning any substance into a different substance.
Chemical Change
A change in matter in which one or more new substances form.
Expected Change
A change that yields a predictable and standard result.
Heterogenous mixture
A mixture that is not the same throughout.
Homogenous mixture
A mixture that is the same throughout.
Aqueous Solution
A type of homogeneous mixture with a major substance being water. Water is always the solvent.
Solvent
A type of homogeneous mixture with a major substance being water. Water is always the solvent.
Universal Solvent
A solvent that can dissolve a great quantity of substances; water.
Solute
The substance that is being dissolved in the solvent. This component may be in the form of a solid, liquid, or a gas.
Solution
A homogeneous type of mixture of two or more substances. A solution has two parts: a solute and a solvent.
Concentration
The amount of solute dissolved in a set amount of the solvent.
Dilution
The act of decreasing the concentration of a solution. This can occur by adding solvent or removing solute, or both.
Rate of Dissolution
The speed at which a solute dissolves in a solvent.
Agitation
To stir or shake a solution; can increase the rate of dissolution.
Surface Area
The amount of space present on the surface of a material. Increasing the surface area can increase the rate of dissolution.
Temperature
The amount of heat present; increasing the temperature can increase the rate of dissolution.